TNY290KG-TL

With line-compensated overload power protection, TinySwitch-4 devices dramatically reduce maximum overload variation over the universal input voltage range. It is particularly helpful in applications such as PC standby and CV adapters to limit maximum O/P power during the overload fault condition. TinySwitch-4 also incorporates 725V MOSFET that easily allows 80% de-rating for high reflected voltage and high bus voltage designs. The BP/M pin permits MOSFET current limit to be adjusted up or down, allowing designers to optimize power delivery and efficiency in a variety of physical implementations. An on-time extension function extends low-line regulation range, enabling hold-up time to be met with lower values of input capacitance. Used in PC standby and other auxiliary supplies, DVD/PVR, other low power set top decoders, supplies for appliances, industrial systems, metering, chargers/adapters for cell/cordless phones, PDAs, digital cameras, MP3/portable audio, shavers, etc.

• 28W (adapter), 36.5W (peak/open) at 230V ±15%/20W (adapter), 28.5W (peak/open) at 85-265V O/P power
• Lowest system cost with enhanced flexibility, EcoSmart™extremely energy efficient
• Enhanced safety and reliability features, simple ON/OFF control, no loop compensation needed
• Easily meets all global energy efficiency regulations
• No-load 30mW with bias winding, 150mW at 265VAC without bias winding
• Accurate hysteretic thermal shutdown protection with automatic recovery eliminates manual reset
• Auto-restart delivers 3% of maximum power in short-circuit and open loop fault conditions
• Tight I2f parameter tolerance reduces system cost, output overvoltage shutdown with optional zener
• Self-biased: no bias winding or bias components, frequency jittering reduces EMI filter costs
• Pin-out simplifies heat sinking to the PCB, SOURCE pins are electrically quiet for low EMI